Roger Mayweather - "Black Mamba" Roberto Duran - "Manos de piedra (Hands of Stone)" Vinny Paz - "The Pazmanian Devil" And of course I will always love "Marvelous" Marvin Hagler which the champ legally changed his name to.
The Dean of Mean and the Irish Hand Grenade. Superb nicknames. But as far as boxing nicknames go, Lights Out has to be up there. Oh, and the magic man.
Surprised no one mentioned The Brockton Blockbuster I like The Motor City Cobra, Light Out, El Flaco Explosivo, and The Manassa Mauler the best
Larry Holmes, the Easton Assassin. Heard that as a kid and it sounded horrifying, like this man was the preeminent person from Easton who killed people, and they gave him a job doing it. Like Jim Jeffries, the Boilermaker too.
My personal faves: Baby-Faced Assassin El Terrible El Inca Sugar Ray (Sugar Shane sounds better but sugar will always belong to the Rays) Six Heads Explosive Thin Man Boom Boom Sweet Pea Quiet Man Black Mamba Dr. Steelhammer Baby Bull Ones that make me laugh: Kratingdaenggym (literally translates to red bull gym) SOG (son of god? really? sorry, it just sounds more like a christian movie title rather than a nick) The Magic Man (lol sounds like a guy hired to perform at a bday party) Beast from The East (usually names that rhyme should be avoided) The Ding-a-Ling-Man (oh man, I would've loved to hear Bruce Buffer call that one out with exaggerated enthusiasm) What the Heck (exactly...what the...heck?!) Le Tombeur (if I'm not mistaken that translates to the ladykiller...haha. Makes me think of a self proclaimed sexy French man)